How To Enable Background Slide Show For All Style

Hi Team
Can You Pls Suggest Me That How Can I Enable The BG Slide Show For Every Style. I Tried It From "Template Manager"-> "Background Type". But It's Not Working, Its Only Shows The Static Image, While I select The "Slide Show" Option From "Background Type" Tab.

Pls Suggest How To Enable Background Slide Show For All Styles.

Thanks & Best Regards
Anjan

edit:

<template folder>/styles/style[X].php

first variable should be:

$backgroundImage = "slideshow";

Thanks..Working Fine